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Locks, Safes, and Security (2nd ed.) by Tobias, Marc Weber (ebook)
Locksandsafesonline Carries thousands of safes and locks including electric strikes, pushbutton locks, and much more! If you work for a government agency, are an investigator, or criminalist, you will find LSS+ to be a rich source of information regarding locks and safes, and their bypass. Detailed information, complemented by extensive audio and video, detail many of the tools that are available for covertly bypassing high security locking blogger.comry: INSTRUCTIONAL INTERACTIVE SOFTWARE. Download PDF Locks, Safes and Security: An International Police Reference (2 volume set), by Marc Weber Tobias. So, simply be below, discover guide Locks, Safes And Security: An International Police Reference (2 Volume Set), By Marc Weber Tobias now as well as review that quickly.
Locks safes and security pdf download
This banner text can have markup. Search the history of over billion web pages on the Internet. Books by Language Journal of materials engineering. Full Cord Bluegrass Podcasts. Among other things we examine how this works, why it works better on some locks than on others, whether one could detect that this technique was used against a locks safes and security pdf download and what the lock-industry could do to protect new locks against this technique.
Understanding the threat of this new method of manipulating locks is of added importance because we have found that this method actually works better on the more expensive mechanical locks generally considered to be most resistant to manipulation. We decided to publish what we know about this method because we feel those that depend on the security of locks or any other piece of technology for that matter need to be able to continuously re-evaluate their security locks safes and security pdf download full knowledge of any threats.
This vulnerability is simply too generic: it affects many locks and cannot be 'fixed' by a single lock manufacturer working in secrecy until a new and better lock can be released. Although we have further refined the method we were originally shown, we did originally learn about it through a public appearance by Klaus Noch.
And we noticed yet other people knew how to make it work even better too. In other words, this knowledge is 'out there', the cat is out of the bag, locks safes and security pdf download. Given these circumstances, rather than allowing knowledge of this method to spread slowly amongst those that could attack unknowing victims, we decided to publish so that facility managers can re-evaluate their security and see whether additional security measures need to be taken at some locations, locks safes and security pdf download.
If you disagree, locks safes and security pdf download, we encourage you to read [1] and [2] for a more thorough understanding of the discussion on whether or not to publish information describing security flaws before engaging in any heated debate. The key slides down the keyway in the inner cylinder of the lock.
As it moves, the cuts in the key move stacks of two or more pins, moving in holes drilled through the outer and inner cylinder.
Small springs behind these pins push the pins back after a high point on the key has passed. When the correct key is all the way in and the 'shoulder' of the key rests against the inner cylinder, all the gaps between the pins inside the lock align on the 'sheer line', and the inner cylinder is free to turn. Photos courtesy of Matt Blaze The picture above shows a 'cut-away' version of a simple pin tumbler lock with the correct key inserted.
For a much more thorough introduction to the inner workings of locks, please refer to [3], 2. A skilled operator can use tools to feel and move individual pins in the lock. Lockpicking allows one to open a lock by exploiting the fact that the pin stacks are never perfectly aligned. This causes some pins to be stuck between the inner and outer cylinder before others.
Because of this, one can feel that certain pins are correctly aligned before all the pins are aligned. And because the outer pins that would jam before others will remain on the outside of the inner cylinder after the locks safes and security pdf download is turned slightly, one can successively place the pins in the correct position and open the lock.
Lockpicking takes quite a bit of practice. Apart from intelligence professionals, criminals and locksmiths practicing it, lockpicking has become a regular sport, complete with official clubs and championships 1. Lock manufacturers have defended new locks against picking by inserting so-called 'mushroom pins', by making keyways narrower providing less space for tools and by lowering the mechanical tolerances of the lock manufacturing process.
See picture of EVVA lock on page 7 Going over the details of locks and lock picking would be outside of the scope of this paper. These devices all exploit Newton's law that says that for every action there is an equal and opposite reaction. Most people are familiar with Newton's cradle, a device which is often used to demonstrate this law. If a ball all the way on the left or right side is lifted up and let loose to collide with the row of suspended balls, this ball will transfer all its energy to the next ball and so forth, until the ball on the other end moves to swing away from the other balls, locks safes and security pdf download.
When it swings back, the process is reversed and the original ball swings up. The same principle can be observed during a game of billiards: one ball hits another one, and this ball continues onward whereas the first ball now lies still. This principle can be used to open locks: if impulse energy is transferred to the first pin, it will tend to stay in place and the second pin tends to move locks safes and security pdf download from the first one, until the spring stops it and pushes it back to touch the first pin.
A 'lockpick gun' such as the one shown below will, when the trigger is pulled, tension a spring and then when the trigger is pulled all the way use the force of that spring to snap the needle up for a short distance, but with a very sharp and powerful motion.
By positioning this needle into the lock, just touching the pins, and then pulling the trigger, one tries to hit all the pins simultaneously. By then making the lock turn in the split-second before all the upper pins are pushed back by the springs in the lock, one can open the lock. The amount of turning force and the timing with which to apply it require some training. Vibrating picks use the same principle except many times a second, requiring less training on the part of the operator.
A snapper pick is the simpler version of a pick gun. The lock industry has created locks that are more resistant to this technique. More resistant locks have narrower keyways, preventing tools from being inserted in the first place, and making it harder to transfer the impulse energy to the pins. More resistant locks also have smaller tolerances, creating less space for the pins to bounce around. The head on this gun can be reversed to snap either up or down, allowing picking of 'European style' locks where the pins are pushed up by the springs.
A bump key is described in Marc Tobias's reference work "Locks, Safes, and Security" [4] on page Few people use the technique, and the method does not seem successful against a large number of locks unless the 'minimal motion method' described below is used. Once correctly used, we found this technique to be immensely powerful, allowing a large variety of locks to be opened.
We did not invent this technique, and others probably thought of some of the same refinements we did. We do feel bumping is underestimated, locks safes and security pdf download, and this paper exists to point to its effectiveness.
As it turns out, the best way to transfer energy to the pins is using a locks safes and security pdf download. First of all, we need a 'bump key' for the lock in question. A bump key is a key in which all the cuts are at maximum depth.
The picture below shows bump keys for various locks. Bump keys are sometimes called '' keys because all cuts are at maximum 9 depth. As you can see you can cut bump keys for both regular pin tumbler locks as well as for 'dimple locks', whether 'pin-in-pin' or not.
Just remember to take away all the material that could be taken away by the deepest combination for that position. There are machines that will cut a key based on the numbers that represent the depth at each position.
Having access to such a machine speeds up the process of creating a bump key that has the cuts in the exact right position, although one can also use a file and a steady hand to locks safes and security pdf download one.
Bump keys, locks safes and security pdf download, once cut, can be copied on regular key-cutting equipment, locks safes and security pdf download. You do not necessarily need to have an uncut key called 'blank' to make a bump key: because all the cuts of a bump key are at maximum depth, any used key for a given lock can be converted into a bump key. When we first learned of the method, we were told to first insert the key all the way, and then pull it back one pin.
Then, hit the back of the key the part where you normally hold on to it with a solid object such as a hammer, locks safes and security pdf download, and then turn the key a split-second later.
We found the exact timing for the turning of the lock to be critical, requiring quite a bit of practice. While this method worked on some locks, it did not work on a great many others. Among other problems: when keys had very deep cuts, the trick tended to not work either because the pins would still be pushed in too far by the parts of the bump key between the deepest points. By filing a tiny bit of metal off both the tip and the shoulder of the key, we can create a bump key that can go just a little bit deeper into the lock.
When such a bump key is inserted all the way into the lock, it will be pushed out again a tiny bit by the force of the springs inside the lock, until the pins again rest on the deepest point in the key cuts. We found filing off between 0. We found it is very easy to take off too much. All you need to do is make sure that when the key is in all the way, locks safes and security pdf download, the pins touch the sides of the cuts instead of the bottoms.
Seeing the key be pushed back a fraction of a Bump key Note that tip and millimeter by the springs in the lock means you have filed shoulder are not yet modified, away enough material from the shoulder. Now that we have our bump key, we need to hit the back of the key with something that applies the right amount of impulse power, without having so much weight that it would damage the bump key or the lock.
We use a special bumping tool built by Kurt Ziihlke called the Tomahawk, but anything with not too much weight and preferably also some swing, such as a dull bread-knife held by the blade or the handle of a hammer could also work. A picture showing the gap between the lock and the shoulder of a 'minimal movement' bump key. Some keys do not have a shoulder: such is the case with the Mul-T-Lock keys.
In this case, the depth of the keyway determines how far one can insert the key. To create a bump key, one would locks safes and security pdf download only need to cut off a bit from the end of the key. However, the end of the key and the insides of the lock were found to be too fragile to withstand the repeated hammering while we were trying to open the lock. Oliver Diederichsen came up with an innovative way of making sure the key wouldn't go too deep.
Take off a piece at the end to allow for the key to go further in, locks safes and security pdf download, and then cut a glue stick in two, locks safes and security pdf download, and glue the two half-round pieces to the key after heating them enough to melt a bit of the glue.
In some cases, most notably with some dimple key locks, the force needed is small enough that one can hold the bump key back between one's fingers: no need for glue or anything else. This is a very secure lock, and one of our former favorites, locks safes and security pdf download. One part of the lock is a regular pin tumbler mechanism, while another part is a sidebar mechanism.
Although bumping will successfully attack the pin tumbler part, the sidebar mechanism holds. Unfortunately, it looks like most Twin 's sold in a certain region have the same sidebar, to allow for locksmiths to store pre-cut sidebar blanks for copying.
If this is the case, one could simply cut a bump key out of any key with the correct sidebar for a region. If you have a key, locks safes and security pdf download, please mail a detailed picture of it, complete with the region where you bought the key, to barry0toool. The force needed to transfer enough impact energy to the pins can cause the shoulder of the key to make a dent on the front of the locks safes and security pdf download cylinder, as shown below.
More seriously, bumping can cause minor deformations, causing the bump key to get stuck in the lock. Usually extra force when pulling it out helps to remove the bump key, but in some cases it can get locks safes and security pdf download stuck. The bump key should be made out of the hardest metal available: softer metals will quickly deform at the shoulder, causing the bump key to go too deep and not work.
We predict a large market for hardened steel bump keys for the popular high-security cylinders. Also, some locks where the inner cylinder is made out of softer metals can be damaged quite easily by the shoulder of the bump key. This way one could hit the key without impacting the lock in the same damaging way the shoulder of the bump key does, locks safes and security pdf download.
The rubber would be chosen such that it would deform only by the fraction of a millimeter needed for bumping to work. Shown is Jort Knaap's solution for a Mul-T-Lock Interactive, built out of two nylon washers and a piece of hard rubber which we have found to completely prevent denting. For the time being, putting either a thick rubber band such as used in the postal system or a tie-wrap between the shoulder and the lock seems to prevent or diminish denting.
White tie-wraps seem to be the toughest, and one can tie it though the key-ring hole on the key to keep it in place. Bumping works on some high-end locks we never thought could be manipulated easily, and can be very hard or impossible to get to work on very inexpensive locks.
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, time: 3:55Locks safes and security pdf download
Locks, Safes, and Security: An International Police Reference in Two Volumes (2nd ed.) by Marc Weber Tobias. After you've bought this ebook, you can choose to download either the PDF version or the ePub, or both. DRM Free. The publisher has supplied this book in . Full text of "Locks, safes, and security: an international police reference" See other formats Bumping locks How to open Mul-T-Lock (pin-in-pin, interactive, 7x7), Assa ( Twin), DOM (ix, dimple with ball), LIPS (Octro dimple), Evva TSC, ISEO (dimple & standard), Corbin, Pfaffenhain and a variety of other expensive mechanical locks without substantial damage, usually in under 30 seconds. Feb 08, · Locks, safes, and security: an international police reference by Tobias, Marc Weber. Internet Archive Python library Full catalog record MARCXML. plus-circle Add Review. comment. Reviews There are no reviews yet. PDF download. download 1 file.
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